Heat dissipation board



FIG. 1 is a perspective view of the heat dissipation board showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear front elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is another perspective view thereof; and,

FIG. 9 is a partial perspective view of the heat dissipation board taken along the section line 9-9 of FIG. 6 showing my new design. 

CLAIM The ornamental design for a heat dissipation board, as shown and described. 